TechXDAabout 2 hours ago
ESP32 becomes touch-activated polyphonic synthesizer
1 min read
A developer built a touch-capacitive polyphonic synthesizer using an ESP32, copper ribbon, and MPR121 sensors. Custom C++ DSP handles filters, envelopes, and effects, with audio via I2S to a PCM5102A DAC. The code may be released publicly after interest from the ESP32 subreddit.
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